Examlex
Which of the following regulates progression through the phases of the cell cycle?
Sodium Gate
A protein channel in cell membranes that allows sodium ions to pass through, playing a key role in the generation and propagation of nerve impulses.
Ligand-Gated
Referring to ion channels that open in response to the binding of a chemical messenger (ligand), such as a neurotransmitter.
Acetylcholine
A neurotransmitter involved in many functions including muscle movement, heart rate, and the modulation of brain activity.
GABA
Gamma-Aminobutyric Acid, an inhibitory neurotransmitter in the central nervous system that plays a key role in reducing neuronal excitability throughout the nervous system.
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